一种制备一维纳米材料的新方法——固相转化法  

A Novel Method of Synthesizing One-Dimensional Nanomaterials via Solid-Phase Transition

作　　者：王积森[1] 孙金全[1] 鲍英[1] 陈蕴博[1] 边秀房[2] 徐庆莘[1] 

机构地区：[1]山东科技大学济南校区,济南250031 [2]山东大学材料液态结构及其遗传工程教育部重点实验室,济南250061

出　　处：《材料导报》2004年第7期69-71,共3页Materials Reports

基　　金：青岛市黄岛区计划项目

摘　　要：利用微乳技术和固体反应方法分别合成了锰的氢氧化物和单质锡纳米颗粒前驱体(直径D≤20 nm)。首次将熔盐技术应用于一维纳米材料的合成,以纳米颗粒前驱体为原料制备了一维纳米结构纳米棒、纳米线和纳米带;并发现了一维纳米结构生长的新现象,即纳米颗粒固相自生长。通过 TEM,记录了纳米颗粒前驱体生长的中间体——项链状纳米线。实验分析了熔盐介质、热处理温度和颗粒临界尺寸对纳米颗粒自组织生长的影响,提出了固相生长机理模型。The precursor of manganese hydroxides and tin nanopartilces of their diameter within 20 nm wasprepared via microemulsion technique and solid-phase reaction,respectively.In this paper fulgurite technique was first-ly used to synthesize one-dimensional nanostructure such as nanorods,nanowires and nanobelts via the precursors.Itis found that nanoparticles can grow by self-organization.Necklace-like nanostructure of middle product in process isrecorded by using TEM.The influence of fulgurite medium,annealing temperature and the critical size of nanoparticleson growth is analyzed in detail,and the solid-phase growth model is proposed.

关 键 词：一维纳米结构 微乳技术 固相反应 熔盐介质 固相生长机理模型 固相转化法 

分 类 号：TB383[一般工业技术—材料科学与工程]